Ask question

Ask question

All categories

3 years ago

9

at the bank, Brent exchanges $50 in bills for 50 one dollar coins. the total mass of the coins is 405grams.estimate the mass of

1 one dollar coin

2 answers:

Korvikt [17]3 years ago

6 0

<span>0.0024691358 you just have to divide </span>

Aleksandr-060686 [28]3 years ago

5 0

Each one dollar coin weighs 8.1 grams :) Hope I helped

You might be interested in

Use the quadratic formula to determine the exact solutions to the equation <br> 6x^2 + 4x - 3 = 0

mezya [45]

To solve quadratics, the most correct and effective way, in my opinion, is the quadratic formula:

$x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.$ <span><span>

Plugging it in, we get:

</span></span> $\frac{-4\pm \sqrt{16+72} }{12} = \frac{-4\pm 2\sqrt{22}}{12} = \frac{-2\pm \sqrt{22} }{6}$

So the final answer is:

$\frac{ \sqrt{22}-2 }{6}$ and $\frac{-2- \sqrt{22} }{6}$

5 0

3 years ago

One solution to a quadratic function, h, is given.

Margaret [11]

Answer:

B. The other solution to function $h$ is $-4-i\,7$ .

Step-by-step explanation:

From Algebra, we remember that quadratic functions of the form $a\cdot x^{2}+b\cdot x + c$ has solutions of the form:

$x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}$ , where both are complex if and only if $\sqrt{b^{2}-4\cdot a \cdot c}< 0$ .

Hence, if one solution of the quadratic function is $-4+i\,7$ , then the other solution is $-4-i\,7$ . The correct answer is B.

7 0

3 years ago

Hannah loved mini-Snickers bars. She enjoyed making treats with them. She used 1/2 of her supply to make a blizzard. She froze 1

tensa zangetsu [6.8K]

4 dozen. That means she used half, she has 2 dozen left. 1/4 of that is 1/2 of a dozen, so she has 6 or 1/2 a dozen snickers bars left. Is this middle school? I am in middle school and my lessons are constant of proportionality!!

4 0

3 years ago

What are the next few terms after the following sequence? 1, 1/2, 1/3, 1/4

DerKrebs [107]

Answer:

1/5, 1/6, 1/7, 1/8,1/9, 1/10,1/11,1/12

3 0

3 years ago

the hight, the feet, of a javelin t seconds afther it is moldeled by the function (t) =4t^2 + 24t + 6. Afther how many seconds d

ruslelena [56]

The max height will be reached after 3 seconds.

You have a typo in your equation. For this type of quadratic equation, it always starts out with a negative coefficient of the t squared term.

To find the x-coordinate of the vertex, we just need to use the expression: -b/2a.

Then, we have:

-24 / (2(-4))

-24 / -8

3

8 0

3 years ago